diff --git a/moonlight/js/moonlight-skulk.js b/moonlight/js/moonlight-skulk.js
index e2a622c..2348c1d 100644
--- a/moonlight/js/moonlight-skulk.js
+++ b/moonlight/js/moonlight-skulk.js
@@ -593,7 +593,7 @@ var AISprite = function(game, x, y, key, frame) {
 	}
 
 	var mylines = moonlightDialog['status'][this.sprite_group][aistate];
-	text = mylines[game.rnd.integerInRange(0, mylines.length)];
+	text = mylines[game.rnd.integerInRange(0, mylines.length-1)];
 	style = {font: '14px Arial Bold', fill: '#ffffff'}
 	this.text_size = stringSize(text, style['font']);
 	this.bubble_sprite = game.add.sprite(this.x, this.y, 'wordbubble');